error_code.cpp 16 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532
  1. //Error_code是错误码的底层通用模块,
  2. //功能:用作故障分析和处理。
  3. //用法:所有的功能接口函数return错误管理类,
  4. //然后上层判断分析错误码,并进行故障处理。
  5. #include "error_code.h"
  6. /////////////////////////////////////////////
  7. //构造函数
  8. Error_manager::Error_manager()
  9. {
  10. m_error_code = SUCCESS;
  11. m_error_level = NORMAL;
  12. pm_error_description = 0;
  13. m_description_length = 0;
  14. return ;
  15. }
  16. //拷贝构造
  17. Error_manager::Error_manager(const Error_manager & error_manager)
  18. {
  19. this->m_error_code = error_manager.m_error_code;
  20. this->m_error_level = error_manager.m_error_level;
  21. pm_error_description = NULL;
  22. m_description_length = 0;
  23. reallocate_memory_and_copy_string(error_manager.pm_error_description, error_manager.m_description_length);
  24. return ;
  25. }
  26. //赋值构造
  27. Error_manager::Error_manager(Error_code error_code, Error_level error_level,
  28. const char* p_error_description, int description_length)
  29. {
  30. m_error_code = error_code;
  31. m_error_level = error_level;
  32. pm_error_description = NULL;
  33. m_description_length = 0;
  34. reallocate_memory_and_copy_string(p_error_description, description_length);
  35. return ;
  36. }
  37. //赋值构造
  38. Error_manager::Error_manager(Error_code error_code, Error_level error_level , std::string & error_aggregate_string)
  39. {
  40. m_error_code = error_code;
  41. m_error_level = error_level;
  42. pm_error_description = NULL;
  43. m_description_length = 0;
  44. reallocate_memory_and_copy_string(error_aggregate_string);
  45. return ;
  46. }
  47. //析构函数
  48. Error_manager::~Error_manager()
  49. {
  50. free_description();
  51. }
  52. //初始化
  53. void Error_manager::error_manager_init()
  54. {
  55. error_manager_clear_all();
  56. return;
  57. }
  58. //初始化
  59. void Error_manager::error_manager_init(Error_code error_code, Error_level error_level, const char* p_error_description, int description_length)
  60. {
  61. m_error_code = error_code;
  62. m_error_level = error_level;
  63. reallocate_memory_and_copy_string(p_error_description, description_length);
  64. return ;
  65. }
  66. //初始化
  67. void Error_manager::error_manager_init(Error_code error_code, Error_level error_level , std::string & error_aggregate_string)
  68. {
  69. m_error_code = error_code;
  70. m_error_level = error_level;
  71. reallocate_memory_and_copy_string(error_aggregate_string);
  72. return ;
  73. }
  74. //重置
  75. void Error_manager::error_manager_reset(Error_code error_code, Error_level error_level, const char* p_error_description, int description_length)
  76. {
  77. m_error_code = error_code;
  78. m_error_level = error_level;
  79. reallocate_memory_and_copy_string(p_error_description, description_length);
  80. return ;
  81. }
  82. //重置
  83. void Error_manager::error_manager_reset(Error_code error_code, Error_level error_level , std::string & error_aggregate_string)
  84. {
  85. m_error_code = error_code;
  86. m_error_level = error_level;
  87. reallocate_memory_and_copy_string(error_aggregate_string);
  88. return ;
  89. }
  90. //重置
  91. void Error_manager::error_manager_reset(const Error_manager & error_manager)
  92. {
  93. this->m_error_code = error_manager.m_error_code;
  94. this->m_error_level = error_manager.m_error_level;
  95. reallocate_memory_and_copy_string(error_manager.pm_error_description, error_manager.m_description_length);
  96. return ;
  97. }
  98. //清除所有内容
  99. void Error_manager::error_manager_clear_all()
  100. {
  101. m_error_code = SUCCESS;
  102. m_error_level = NORMAL;
  103. free_description();
  104. }
  105. //重载=
  106. Error_manager& Error_manager::operator=(const Error_manager & error_manager)
  107. {
  108. error_manager_reset(error_manager);
  109. }
  110. //重载=,支持Error_manager和Error_code的直接转化,会清空错误等级和描述
  111. Error_manager& Error_manager::operator=(Error_code error_code)
  112. {
  113. error_manager_clear_all();
  114. set_error_code(error_code);
  115. }
  116. //重载==
  117. bool Error_manager::operator==(const Error_manager & error_manager)
  118. {
  119. is_equal_error_manager(error_manager);
  120. }
  121. //重载==,支持Error_manager和Error_code的直接比较
  122. bool Error_manager::operator==(Error_code error_code)
  123. {
  124. if(m_error_code == error_code)
  125. {
  126. return true;
  127. }
  128. else
  129. {
  130. return false;
  131. }
  132. }
  133. //重载!=
  134. bool Error_manager::operator!=(const Error_manager & error_manager)
  135. {
  136. ! is_equal_error_manager(error_manager);
  137. }
  138. //重载!=,支持Error_manager和Error_code的直接比较
  139. bool Error_manager::operator!=(Error_code error_code)
  140. {
  141. if(m_error_code != error_code)
  142. {
  143. return true;
  144. }
  145. else
  146. {
  147. return false;
  148. }
  149. }
  150. //重载<<,支持cout<<
  151. std::ostream & operator<<(std::ostream &out, Error_manager &error_manager)
  152. {
  153. out << error_manager.to_string();
  154. return out;
  155. }
  156. //获取错误码
  157. Error_code Error_manager::get_error_code()
  158. {
  159. return m_error_code;
  160. }
  161. //获取错误等级
  162. Error_level Error_manager::get_error_level()
  163. {
  164. return m_error_level;
  165. }
  166. //获取错误描述的指针,(浅拷贝)
  167. char* Error_manager::get_error_description()
  168. {
  169. return pm_error_description;
  170. }
  171. //复制错误描述,(深拷贝)
  172. //output:p_error_description 错误描述的字符串指针,不可以为NULL,必须要有实际的内存
  173. //output:description_length 错误描述的字符串长度,不可以为0,长度最好足够大,一般256即可。
  174. void Error_manager::copy_error_description(const char* p_error_description, int description_length)
  175. {
  176. if(p_error_description != NULL && pm_error_description != NULL)
  177. {
  178. char *pt_source = (char *)p_error_description;
  179. char* pt_destination = pm_error_description;
  180. int t_length_min = m_description_length;
  181. if(m_description_length > description_length)
  182. {
  183. t_length_min = description_length;
  184. }
  185. for(int i=0;i<t_length_min; i++)
  186. {
  187. *pt_destination = *pt_source;
  188. pt_destination++;
  189. pt_source++;
  190. }
  191. }
  192. return;
  193. }
  194. //复制错误描述,(深拷贝)
  195. //output:error_description_string 错误描述的string
  196. void Error_manager::copy_error_description(std::string & error_description_string)
  197. {
  198. if( (!error_description_string.empty() ) && pm_error_description != NULL)
  199. {
  200. error_description_string = pm_error_description;
  201. }
  202. return;
  203. }
  204. //设置错误码
  205. void Error_manager::set_error_code(Error_code error_code)
  206. {
  207. m_error_code = error_code;
  208. return;
  209. }
  210. //比较错误等级并升级,取高等级的结果
  211. void Error_manager::set_error_level_up(Error_level error_level)
  212. {
  213. if(m_error_level < error_level)
  214. {
  215. m_error_level = error_level;
  216. }
  217. return;
  218. }
  219. //比较错误等级并降级,取低等级的结果
  220. void Error_manager::set_error_level_down(Error_level error_level)
  221. {
  222. if(m_error_level > error_level)
  223. {
  224. m_error_level = error_level;
  225. }
  226. return;
  227. }
  228. //错误等级,设定到固定值
  229. void Error_manager::set_error_level_location(Error_level error_level)
  230. {
  231. m_error_level = error_level;
  232. return;
  233. }
  234. //设置错误描述
  235. void Error_manager::set_error_description(const char* p_error_description, int description_length)
  236. {
  237. reallocate_memory_and_copy_string(p_error_description, description_length);
  238. return ;
  239. }
  240. //设置错误描述
  241. void Error_manager::set_error_description(std::string & error_description_string)
  242. {
  243. reallocate_memory_and_copy_string(error_description_string);
  244. return ;
  245. }
  246. //尾部追加错误描述
  247. void Error_manager::add_error_description(const char* p_error_description, int description_length)
  248. {
  249. if(p_error_description !=NULL)
  250. {
  251. char* pt_description_front = pm_error_description;
  252. int t_description_front_length = m_description_length;
  253. char* pt_description_back = (char *)p_error_description;
  254. int t_description_back_length = 0;
  255. if(description_length == 0)
  256. {
  257. t_description_back_length = 0;
  258. while (*pt_description_back != '\0')
  259. {
  260. t_description_back_length++;
  261. pt_description_back++;
  262. }
  263. t_description_back_length++;
  264. pt_description_back = (char *)p_error_description;
  265. }
  266. else
  267. {
  268. t_description_back_length = description_length;
  269. }
  270. int t_description_new_length = t_description_front_length + 5 + t_description_back_length - 1;
  271. char* pt_description_new = (char*) malloc(t_description_new_length );
  272. sprintf(pt_description_new, "%s ### %s", pt_description_front, pt_description_back);
  273. free_description();
  274. pm_error_description = pt_description_new;
  275. m_description_length = t_description_new_length;
  276. }
  277. return ;
  278. }
  279. //尾部追加错误描述
  280. void Error_manager::add_error_description(std::string & error_description_string)
  281. {
  282. if( ! error_description_string.empty() )
  283. {
  284. std::string t_description_string = pm_error_description ;
  285. t_description_string += (" ### "+ error_description_string);
  286. reallocate_memory_and_copy_string(t_description_string);
  287. }
  288. }
  289. //比较错误是否相同,
  290. // 注:只比较错误码和等级
  291. bool Error_manager::is_equal_error_manager(const Error_manager & error_manager)
  292. {
  293. if(this->m_error_code == error_manager.m_error_code
  294. && this->m_error_level == error_manager.m_error_level)
  295. {
  296. return true;
  297. }
  298. else
  299. {
  300. return false;
  301. }
  302. }
  303. //比较并覆盖错误,讲低级错误转为字符串存放于描述中,
  304. //如果错误相同,则保留this的,将输入参数转入描述。
  305. void Error_manager::compare_and_cover_error(const Error_manager & error_manager)
  306. {
  307. if(this->m_error_code == SUCCESS)
  308. {
  309. error_manager_reset(error_manager);
  310. }
  311. else if (error_manager.m_error_code == SUCCESS)
  312. {
  313. return;
  314. }
  315. else
  316. {
  317. Error_manager t_error_manager_new;
  318. char* pt_string_inside = NULL;
  319. int t_string_inside_length = 0;
  320. if(this->m_error_level < error_manager.m_error_level)
  321. {
  322. t_string_inside_length = ERROR_NAMAGER_TO_STRING_FRONT_LENGTH + this->m_description_length;
  323. pt_string_inside = (char*)malloc(t_string_inside_length);
  324. translate_error_to_string(pt_string_inside, t_string_inside_length);
  325. error_manager_reset(error_manager);
  326. add_error_description(pt_string_inside,t_string_inside_length);
  327. }
  328. else
  329. {
  330. t_string_inside_length = ERROR_NAMAGER_TO_STRING_FRONT_LENGTH + error_manager.m_description_length;
  331. pt_string_inside = (char*)malloc(t_string_inside_length);
  332. ((Error_manager & )error_manager).translate_error_to_string(pt_string_inside, t_string_inside_length);
  333. add_error_description(pt_string_inside,t_string_inside_length);
  334. }
  335. }
  336. }
  337. //比较并覆盖错误,讲低级错误转为字符串存放于描述中,
  338. //如果错误相同,则保留this的,将输入参数转入描述。
  339. void Error_manager::compare_and_cover_error( Error_manager * p_error_manager)
  340. {
  341. if(this->m_error_code == SUCCESS)
  342. {
  343. error_manager_reset(*p_error_manager);
  344. }
  345. else if (p_error_manager->m_error_code == SUCCESS)
  346. {
  347. //
  348. }
  349. else
  350. {
  351. Error_manager t_error_manager_new;
  352. char* pt_string_inside = NULL;
  353. int t_string_inside_length = 0;
  354. if(this->m_error_level < p_error_manager->m_error_level)
  355. {
  356. t_string_inside_length = ERROR_NAMAGER_TO_STRING_FRONT_LENGTH + this->m_description_length;
  357. pt_string_inside = (char*)malloc(t_string_inside_length);
  358. translate_error_to_string(pt_string_inside, t_string_inside_length);
  359. error_manager_reset(*p_error_manager);
  360. add_error_description(pt_string_inside,t_string_inside_length);
  361. }
  362. else
  363. {
  364. t_string_inside_length = ERROR_NAMAGER_TO_STRING_FRONT_LENGTH + p_error_manager->m_description_length;
  365. pt_string_inside = (char*)malloc(t_string_inside_length);
  366. p_error_manager->translate_error_to_string(pt_string_inside, t_string_inside_length);
  367. add_error_description(pt_string_inside,t_string_inside_length);
  368. }
  369. }
  370. }
  371. //将所有的错误信息,格式化为字符串,用作日志打印。
  372. //output:p_error_description 错误汇总的字符串指针,不可以为NULL,必须要有实际的内存
  373. //output:description_length 错误汇总的字符串长度,不可以为0,长度最好足够大,一般256即可。
  374. void Error_manager::translate_error_to_string(char* p_error_aggregate, int aggregate_length )
  375. {
  376. char t_string_array[ERROR_NAMAGER_TO_STRING_FRONT_LENGTH] = {0};
  377. char* pt_index_front = t_string_array;
  378. char* pt_index_back = pm_error_description;
  379. char* pt_index = p_error_aggregate;
  380. sprintf(t_string_array, "error_code:0x%08x, error_level:%02d, error_description:", m_error_code , m_error_level );
  381. int t_length_min = m_description_length + ERROR_NAMAGER_TO_STRING_FRONT_LENGTH -1;
  382. if(t_length_min > aggregate_length)
  383. {
  384. t_length_min = aggregate_length;
  385. }
  386. for(int i=0;i<t_length_min; i++)
  387. {
  388. if(i < ERROR_NAMAGER_TO_STRING_FRONT_LENGTH -1)
  389. {
  390. *pt_index = *pt_index_front;
  391. pt_index++;
  392. pt_index_front++;
  393. }
  394. else
  395. {
  396. *pt_index = *pt_index_back;
  397. pt_index++;
  398. pt_index_back++;
  399. }
  400. }
  401. }
  402. //output:error_description_string 错误汇总的string
  403. void Error_manager::translate_error_to_string(std::string & error_aggregate_string)
  404. {
  405. char t_string_array[ERROR_NAMAGER_TO_STRING_FRONT_LENGTH] = {0};
  406. sprintf(t_string_array, "error_code:0x%08x, error_level:%02d, error_description:", m_error_code , m_error_level );
  407. error_aggregate_string = t_string_array ;
  408. if(pm_error_description != NULL)
  409. {
  410. error_aggregate_string += pm_error_description;
  411. }
  412. else
  413. {
  414. //error_aggregate_string += "NULL";
  415. }
  416. }
  417. //错误码转字符串的简易版,可支持cout<<
  418. //return 错误汇总的string
  419. std::string Error_manager::to_string()
  420. {
  421. std::string t_string;
  422. translate_error_to_string(t_string);
  423. return t_string;
  424. }
  425. //释放错误描述的内存,
  426. void Error_manager::free_description()
  427. {
  428. if(pm_error_description != NULL)
  429. {
  430. free (pm_error_description);
  431. pm_error_description = NULL;
  432. }
  433. m_description_length = 0;
  434. }
  435. //重新分配错误描述的内存,并从外部拷贝新的(深拷贝)
  436. //input:p_error_description 错误描述的字符串指针,可以为NULL,
  437. //input:description_length 错误描述的字符串长度,如果为0,则从p_error_description里面获取有效的长度
  438. void Error_manager::reallocate_memory_and_copy_string(const char* p_error_description, int description_length)
  439. {
  440. free_description();
  441. if(p_error_description != NULL)
  442. {
  443. char* pt_source = (char *)p_error_description;
  444. char* pt_destination = NULL;
  445. if(description_length == 0)
  446. {
  447. m_description_length = 0;
  448. while (*pt_source != '\0')
  449. {
  450. m_description_length++;
  451. pt_source++;
  452. }
  453. m_description_length++;
  454. pt_source = (char *)p_error_description;
  455. }
  456. else
  457. {
  458. m_description_length = description_length;
  459. }
  460. pm_error_description = (char*) malloc(m_description_length );
  461. pt_destination = pm_error_description;
  462. for(int i=0;i<m_description_length; i++)
  463. {
  464. *pt_destination = *pt_source;
  465. pt_destination++;
  466. pt_source++;
  467. }
  468. }
  469. return;
  470. }
  471. //重新分配错误描述的内存,并从外部拷贝新的(深拷贝)
  472. //input:error_aggregate_string 错误描述的string
  473. void Error_manager::reallocate_memory_and_copy_string(std::string & error_aggregate_string)
  474. {
  475. free_description();
  476. if( ! error_aggregate_string.empty())
  477. {
  478. m_description_length = error_aggregate_string.length()+1;
  479. pm_error_description = (char*) malloc( m_description_length );
  480. strcpy(pm_error_description , error_aggregate_string.c_str() );
  481. }
  482. }